# file: mlo_F113_MM.dat # date: 2023-08-29 # # Chlorofluorocarbon-113 (F113) data from hourly in situ samples analyzed on a gas chromatograph located # at Mauna Loa (MLO), Hawaii (19.539 N, 155.578 W, elevation: 3397 m). # # Atmospheric measurements from the NOAA/GML Chromatograph for Atmospheric Trace # Species (CATS) program. This GC replaces the RITS GCs operated during the # period of 1986 through 2000. This work was funded in part by the Atmospheric Chemistry Project of # NOAA's Climate and Global Change Program. # # Data use policy see https://gml.noaa.gov/hats/hats_datause.html # # Citation: # G.S. Dutton and B.D. Hall (2023), # Global Atmospheric Chlorofluorocarbon-113 Dry Air Mole Fractions from the # NOAA GML Halocarbons in situ Network, 1998-2023, Version: 2023-08-29, # https://doi.org/10.7289/V5X0659V # # For contact information see https://gml.noaa.gov/about/stafflist.html # # Calibration scale used: NOAA 2002 # More information about the calibration scale can be found at: https://gml.noaa.gov/ccl/ # # See (http://www.esrl.noaa.gov/gmd/obop/) for station statistics and personnel. # # The CATS GCs sample air once an hour. Monthly median data are provided in parts-per-trillion, ppt. # Abbreviations used: # yr=year, mon=month, m=monthly data; gc=type of sample--in situ GC data, sd=standard deviation of samples, # n=number of samples, brw=Pt. Barrow, Alaska, sum=Summit, Greenland, nwr= Niwot Ridge, Colorado # mlo=Mauna Loa, Hawaii, smo = American Samoa, spo=South Pole, Antarctica # NAN=not a number or no data, and space(s) is the delimiter. # # The standard deviation (unc) reported is the estimate of insturmental precision. # The standard deviation (sd) reported is the estimate of atmospheric variability. # # year, month, monthly median of F113 in ppt, uncertainty (unc), std. dev. (sd), number of samples # F113catsMLOyr F113catsMLOmon F113catsMLOm F113catsMLOunc F113catsMLOsd F113catsMLOn 1998 1 nan nan nan 0 1998 2 nan nan nan 0 1998 3 nan nan nan 0 1998 4 nan nan nan 0 1998 5 nan nan nan 0 1998 6 nan nan nan 0 1998 7 nan nan nan 0 1998 8 nan nan nan 0 1998 9 nan nan nan 0 1998 10 nan nan nan 0 1998 11 nan nan nan 0 1998 12 nan nan nan 0 1999 1 nan nan nan 0 1999 2 nan nan nan 0 1999 3 nan nan nan 0 1999 4 nan nan nan 0 1999 5 nan nan nan 0 1999 6 nan nan nan 0 1999 7 nan nan nan 0 1999 8 nan nan nan 0 1999 9 nan nan nan 0 1999 10 nan nan nan 0 1999 11 nan nan nan 0 1999 12 84.29 0.85 0.92 385 2000 1 84.38 0.89 0.94 579 2000 2 84.39 0.87 0.94 603 2000 3 84.41 0.89 1.00 704 2000 4 84.51 0.85 1.03 657 2000 5 84.61 0.84 1.20 567 2000 6 84.36 1.00 1.34 182 2000 7 nan nan nan 0 2000 8 nan nan nan 0 2000 9 nan nan nan 0 2000 10 83.51 0.13 0.21 120 2000 11 83.65 0.14 0.23 180 2000 12 83.75 0.13 0.20 316 2001 1 83.67 0.15 0.19 207 2001 2 83.55 0.12 0.20 320 2001 3 83.60 0.13 0.20 359 2001 4 83.43 0.12 0.21 345 2001 5 83.36 0.12 0.18 369 2001 6 83.15 0.12 0.22 171 2001 7 83.18 0.11 0.22 568 2001 8 83.18 0.11 0.19 717 2001 9 83.17 0.11 0.23 707 2001 10 83.21 0.12 0.19 723 2001 11 83.23 0.11 0.20 445 2001 12 83.00 0.11 0.19 546 2002 1 83.01 0.12 0.18 669 2002 2 83.04 0.14 0.17 639 2002 3 83.02 0.13 0.17 728 2002 4 82.97 0.13 0.20 696 2002 5 82.83 0.13 0.19 680 2002 6 82.68 0.14 0.22 699 2002 7 82.60 0.11 0.22 675 2002 8 82.48 0.13 0.27 694 2002 9 82.53 0.12 0.21 611 2002 10 82.54 0.13 0.24 623 2002 11 82.65 0.12 0.17 348 2002 12 82.59 0.12 0.17 352 2003 1 82.59 0.12 0.18 511 2003 2 82.56 0.12 0.17 633 2003 3 82.34 0.11 0.23 715 2003 4 82.22 0.12 0.17 704 2003 5 82.16 0.11 0.19 738 2003 6 82.05 0.10 0.21 693 2003 7 82.00 0.11 0.23 679 2003 8 81.93 0.11 0.25 707 2003 9 81.96 0.10 0.27 659 2003 10 81.90 0.12 0.25 680 2003 11 81.87 0.12 0.19 693 2003 12 81.86 0.11 0.16 724 2004 1 81.80 0.12 0.19 736 2004 2 81.74 0.12 0.20 665 2004 3 81.69 0.12 0.18 670 2004 4 81.69 0.11 0.17 703 2004 5 81.40 0.11 0.33 688 2004 6 81.06 0.11 0.24 663 2004 7 81.10 0.12 0.21 635 2004 8 81.10 0.11 0.22 591 2004 9 81.07 0.12 0.25 644 2004 10 81.02 0.11 0.23 690 2004 11 81.15 0.11 0.18 693 2004 12 81.11 0.12 0.19 683 2005 1 81.08 0.11 0.18 641 2005 2 81.10 0.11 0.17 632 2005 3 81.05 0.13 0.20 712 2005 4 81.04 0.13 0.19 660 2005 5 80.93 0.12 0.20 688 2005 6 80.84 0.12 0.23 677 2005 7 80.78 0.14 0.22 692 2005 8 80.75 0.25 0.17 618 2005 9 80.69 0.15 0.24 650 2005 10 80.67 0.19 0.24 663 2005 11 80.64 0.29 0.25 601 2005 12 80.66 0.15 0.18 307 2006 1 nan nan nan 0 2006 2 nan nan nan 0 2006 3 nan nan nan 0 2006 4 nan nan nan 0 2006 5 nan nan nan 0 2006 6 nan nan nan 0 2006 7 nan nan nan 0 2006 8 nan nan nan 0 2006 9 nan nan nan 0 2006 10 nan nan nan 0 2006 11 nan nan nan 0 2006 12 nan nan nan 0 2007 1 nan nan nan 0 2007 2 nan nan nan 0 2007 3 nan nan nan 0 2007 4 nan nan nan 0 2007 5 nan nan nan 0 2007 6 nan nan nan 0 2007 7 nan nan nan 0 2007 8 nan nan nan 0 2007 9 nan nan nan 0 2007 10 nan nan nan 0 2007 11 nan nan nan 0 2007 12 78.20 0.21 0.29 255 2008 1 78.18 0.47 0.43 701 2008 2 78.25 0.34 0.32 513 2008 3 nan nan nan 0 2008 4 nan nan nan 0 2008 5 78.46 0.38 0.30 95 2008 6 78.29 0.54 0.41 657 2008 7 78.07 0.49 0.41 690 2008 8 78.04 0.47 0.43 656 2008 9 78.04 0.64 0.48 640 2008 10 78.34 0.63 0.54 631 2008 11 78.15 0.38 0.35 654 2008 12 78.35 0.29 0.35 654 2009 1 78.23 0.29 0.38 668 2009 2 78.32 0.36 0.33 589 2009 3 77.72 0.34 0.48 531 2009 4 77.46 0.40 0.35 667 2009 5 77.34 0.68 0.50 680 2009 6 77.30 0.66 0.44 583 2009 7 77.29 0.57 0.48 646 2009 8 77.41 0.65 0.60 624 2009 9 77.55 1.01 0.78 571 2009 10 77.33 0.50 0.50 706 2009 11 77.38 0.52 0.48 675 2009 12 77.54 0.73 0.56 653 2010 1 77.52 0.73 0.44 531 2010 2 77.44 0.88 0.52 282 2010 3 77.18 0.48 0.44 653 2010 4 77.20 0.63 0.51 649 2010 5 77.11 0.71 0.47 646 2010 6 77.11 0.66 0.43 678 2010 7 77.03 0.65 0.45 708 2010 8 76.83 0.41 0.37 506 2010 9 76.76 0.61 0.43 555 2010 10 76.73 0.67 0.42 720 2010 11 76.78 0.60 0.43 700 2010 12 76.87 0.32 0.31 690 2011 1 76.80 0.33 0.33 552 2011 2 76.70 0.30 0.27 653 2011 3 76.77 0.38 0.33 720 2011 4 76.68 0.34 0.28 688 2011 5 76.61 0.29 0.28 668 2011 6 76.55 0.44 0.36 638 2011 7 76.55 0.48 0.38 726 2011 8 76.48 0.42 0.36 722 2011 9 76.43 0.40 0.37 695 2011 10 76.42 0.38 0.35 725 2011 11 76.32 0.22 0.22 709 2011 12 76.02 0.43 0.32 672 2012 1 76.07 0.83 0.39 668 2012 2 76.04 0.56 0.30 623 2012 3 75.96 0.49 0.30 539 2012 4 75.93 0.63 0.37 655 2012 5 75.80 0.67 0.32 647 2012 6 75.70 0.64 0.35 632 2012 7 75.59 0.74 0.39 691 2012 8 75.62 0.61 0.33 700 2012 9 75.60 0.87 0.48 638 2012 10 75.65 0.69 0.41 649 2012 11 75.64 0.71 0.43 664 2012 12 75.63 0.49 0.36 647 2013 1 75.69 0.56 0.83 606 2013 2 75.34 0.50 0.64 314 2013 3 75.48 0.65 0.42 354 2013 4 75.18 0.58 0.43 65 2013 5 74.46 0.45 0.29 673 2013 6 74.32 0.66 0.40 679 2013 7 74.48 0.54 0.38 653 2013 8 74.57 0.71 0.39 474 2013 9 74.61 0.93 0.51 617 2013 10 74.75 0.72 0.44 712 2013 11 74.73 0.55 0.36 645 2013 12 74.56 0.43 0.29 715 2014 1 74.52 0.45 0.34 695 2014 2 74.69 0.87 0.63 546 2014 3 74.58 0.49 0.45 525 2014 4 74.52 0.56 0.42 659 2014 5 74.58 0.49 0.36 632 2014 6 74.16 0.51 0.38 698 2014 7 74.07 0.60 0.51 566 2014 8 73.78 0.46 0.59 605 2014 9 73.73 0.37 0.52 717 2014 10 73.80 0.42 0.61 373 2014 11 nan nan nan 0 2014 12 73.89 0.50 0.58 547 2015 1 73.94 0.69 0.66 693 2015 2 73.90 0.74 0.65 627 2015 3 73.81 0.71 0.62 699 2015 4 73.77 0.66 0.58 682 2015 5 73.81 0.49 0.49 717 2015 6 73.75 0.84 0.64 602 2015 7 73.81 1.30 1.03 631 2015 8 73.80 0.36 0.34 619 2015 9 73.05 0.12 0.23 655 2015 10 73.17 0.14 0.25 727 2015 11 73.16 0.16 0.30 697 2015 12 73.22 0.26 0.32 660 2016 1 73.18 0.22 0.27 652 2016 2 73.06 0.33 0.31 622 2016 3 73.00 0.27 0.26 600 2016 4 72.98 0.35 0.34 681 2016 5 72.82 0.25 0.28 701 2016 6 72.80 0.23 0.30 693 2016 7 72.74 0.18 0.26 721 2016 8 72.65 0.17 0.24 706 2016 9 72.63 0.19 0.27 663 2016 10 72.57 0.18 0.31 689 2016 11 72.76 0.19 0.33 688 2016 12 72.55 0.17 0.24 656 2017 1 72.63 0.18 0.26 666 2017 2 72.52 0.32 0.33 599 2017 3 72.47 0.19 0.30 673 2017 4 72.50 0.27 0.39 627 2017 5 72.31 0.21 0.30 712 2017 6 72.35 0.29 0.34 695 2017 7 72.29 0.31 0.36 384 2017 8 72.19 0.20 0.35 713 2017 9 72.15 0.19 0.33 704 2017 10 72.14 0.20 0.36 718 2017 11 72.17 0.21 0.35 697 2017 12 72.23 0.22 0.29 713 2018 1 72.21 0.21 0.27 706 2018 2 72.12 0.18 0.26 652 2018 3 72.08 0.16 0.27 551 2018 4 71.82 0.17 0.25 712 2018 5 71.75 0.16 0.28 661 2018 6 71.76 0.20 0.30 686 2018 7 71.63 0.18 0.30 712 2018 8 71.62 0.21 0.34 689 2018 9 71.50 0.16 0.25 710 2018 10 71.51 0.15 0.27 667 2018 11 71.68 0.20 0.41 696 2018 12 71.57 0.23 0.30 725 2019 1 71.60 0.26 0.34 503 2019 2 71.44 0.22 0.28 518 2019 3 71.44 0.31 0.38 743 2019 4 71.31 0.30 0.30 712 2019 5 71.27 0.27 0.35 675 2019 6 71.05 0.30 0.41 717 2019 7 71.10 0.27 0.38 732 2019 8 71.15 0.28 0.41 706 2019 9 71.19 0.27 0.42 682 2019 10 71.09 0.28 0.34 739 2019 11 71.11 0.23 0.34 717 2019 12 71.03 0.27 0.34 600 2020 1 71.03 0.28 0.32 661 2020 2 70.84 0.33 0.38 694 2020 3 70.76 0.32 0.38 665 2020 4 70.82 0.28 0.39 707 2020 5 70.89 0.26 0.41 729 2020 6 70.80 0.27 0.38 713 2020 7 70.59 0.27 0.33 705 2020 8 70.57 0.29 0.32 728 2020 9 70.50 0.30 0.34 718 2020 10 70.43 0.27 0.32 732 2020 11 70.45 0.28 0.36 367 2020 12 70.37 0.34 0.32 735 2021 1 70.31 0.34 0.34 617 2021 2 70.39 0.32 0.40 662 2021 3 70.29 0.30 0.30 688 2021 4 70.31 0.31 0.37 688 2021 5 70.22 0.32 0.30 727 2021 6 70.14 0.38 0.33 712 2021 7 69.94 0.32 0.34 737 2021 8 69.97 0.32 0.34 704 2021 9 70.18 0.42 0.37 695 2021 10 70.10 0.39 0.37 709 2021 11 69.97 0.31 0.34 714 2021 12 69.86 0.33 0.33 668 2022 1 69.71 0.34 0.36 681 2022 2 69.68 0.42 0.37 651 2022 3 69.30 0.39 0.35 725 2022 4 69.30 0.25 0.28 680 2022 5 69.12 0.31 0.31 732 2022 6 69.14 0.45 0.33 700 2022 7 68.90 0.36 0.35 719 2022 8 68.82 0.32 0.32 733 2022 9 68.92 0.37 0.38 716 2022 10 68.88 0.30 0.39 665 2022 11 68.90 0.28 0.36 668 2022 12 nan nan nan 0 2023 1 nan nan nan 0 2023 2 nan nan nan 0 2023 3 nan nan nan 0 2023 4 nan nan nan 0 2023 5 nan nan nan 0 2023 6 nan nan nan 0 2023 7 nan nan nan 0 2023 8 nan nan nan 0